Slag-free flux-cored wire

A technology of flux-cored welding wire and slag making, which is applied in welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problems of slag removal and welding efficiency on the surface of the weld, and achieve the refinement of weld grains and welding efficiency. Improve and avoid the effect of slagging

Active Publication Date: 2010-07-21
山东聚力焊接材料有限公司
View PDF0 Cites 29 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a formula of slag-free flux-cored welding wire to solve the problem of slag removal on the surface of the weld and the problem of welding efficiency that cannot be solved by the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] The raw material formula of the present invention increases the combination of molybdenum powder, nickel powder and rare earth silicon, eliminates the slag-forming mineral powder in the common flux cored wire formula, and only retains a small amount of sodium fluoride to increase the fluidity of the deposited metal, while optimizing various The optimal combination of metal powder ratio can improve the toughness, strength and fatigue resistance of the weld, and refine the grain of the weld. At the same time, slagging on the surface of the weld seam is avoided, thereby improving the welding efficiency. Satisfy the performance and performance of welding deposited metal.

[0008] Calculated according to the weight components of raw materials, the formula ratio is: 6 parts of micro-carbon ferrochromium, 14 parts of low-carbon ferromanganese, 60 parts of iron powder, 3 parts of molybdenum powder, 0.3 parts of ferroboron, 2 parts of rare earth silicon, 2 parts of ferrosilicon ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
tensile strengthaaaaaaaaaa
Login to view more

Abstract

The invention provides a novel process for a formula of a slag-free flux-cored wire, and relates to a welding material. The manufacturing method adds the combination of molybdenum powder, nickel powder and rare earth silicon to a formula of raw materials, eliminates mineral powder in a common formula, and optimizes the proportion of various types of metal powder in the formula. According to the formula, the welding material comprises the following components: 4 to 8 parts of micro carbon ferrochromium, 12 to 18 parts of low carbon ferromanganese, 56 to 67 parts of iron powder, 2 to 6 parts of molybdenum powder, 0.1 to 0.4 part of ferroboron, 2 to 5 parts of rare earth silicon, 1 to 3 parts of ferrosilicon, 2 to 3 parts of ferrotitanium, 2 to 3 parts of sodium fluoride, 3 to 7 parts of ferroaluminum, 1 to 3 parts of aluminum to magnesium powder and 4 to 8 parts of nickel powder. The invention improves the toughness, strength and anti-fatigue performance of welding seams and thins welding-seam grains by adding the combination of molybdenum powder, nickel powder and rare earth silicon into the raw materials of the formula, eliminating the mineral powder in the common formula, and optimizing the proportion of various types of metal powder in the formula. Meanwhile, slagging on the surfaces of the welding seams is avoided, and welding efficiency is raised by 20 percent compared with slag-type processes.

Description

technical field [0001] The invention belongs to the field of welding technology and relates to a welding material for welding steel plates with a tensile strength of 700-800Mpa. Background technique [0002] At present, the production technology of flux-cored welding wire in China is basically mature. Due to the limitation of the flux-cored formula, in order to make the deposited metal achieve a certain welding performance and weld beauty in the welding process of ordinary flux-cored welding wire, acid slag formula is selected and added to the formula. Add slag-forming mineral powder; the acidic slagging mineral powder contained in the basic formula is: 30-35 parts of rutile, 4-8 parts of quartz, 1-2 parts of cryolite, 1-2 parts of sodium fluoride, zircon sand 1-3 parts, 2-4 parts of fluorite, 1-3 parts of potassium feldspar, 2-4 parts of wollastonite. Will inevitably cause like this to carry out a slag removal once welding a weld seam, has increased worker's labor intensit...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30
Inventor 孟波乔吉春郭萍王世栋
Owner 山东聚力焊接材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap